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<a href="https://gitlab.com/ansasaki">Anderson Sasaki</a> created a merge request:
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Project:Branches: ansasaki/gnutls:aesni-xts to gnutls/gnutls:master
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Author: Anderson Sasaki
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Assignees: 
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<p dir="auto">Add a wrapper for the optimized CRYPTOGAMS AES-XTS implementation already present in the generated assembly code. It also enables AES-XTS in <code>gnutls-cli --benchmark-ciphers</code>.</p>
<p dir="auto">Running the benchmark locally (Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz) before the changes, these are the results:</p>
<pre class="code highlight js-syntax-highlight plaintext" lang="plaintext" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">$ ./src/gnutls-cli --benchmark-ciphers | grep AES-.*-XTS</span>
<span id="LC2" class="line" lang="plaintext">             AES-128-XTS 0.79 GB/sec</span>
<span id="LC3" class="line" lang="plaintext">             AES-256-XTS 0.66 GB/sec</span></code></pre>
<p dir="auto">And after applying the changes:</p>
<pre class="code highlight js-syntax-highlight plaintext" lang="plaintext" v-pre="true"><code><span id="LC1" class="line" lang="plaintext">$ ./src/gnutls-cli --benchmark-ciphers | grep AES-.*-XTS</span>
<span id="LC2" class="line" lang="plaintext">             AES-128-XTS 5.69 GB/sec</span>
<span id="LC3" class="line" lang="plaintext">             AES-256-XTS 4.14 GB/sec</span></code></pre>
<p dir="auto">Which gives approximately 7 times increased performance.</p>
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<a id="user-content-checklist" class="anchor" href="#checklist" aria-hidden="true"></a>Checklist</h2>
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<input type="checkbox" class="task-list-item-checkbox" checked disabled> Commits have <code>Signed-off-by:</code> with name/author being identical to the commit author</li>
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<input type="checkbox" class="task-list-item-checkbox" checked disabled> Code modified for feature</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> Test suite updated with functionality tests</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> Test suite updated with negative tests</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> Documentation updated / NEWS entry present (for non-trivial changes)</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> CI timeout is 2h or higher (see Settings/CICD/General pipelines/Timeout)</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> Any issues marked for closing are addressed</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> There is a test suite reasonably covering new functionality or modifications</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> Function naming, parameters, return values, types, etc., are consistent and according to <code>CONTRIBUTION.md</code>
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<input type="checkbox" class="task-list-item-checkbox" disabled> This feature/change has adequate documentation added</li>
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<input type="checkbox" class="task-list-item-checkbox" disabled> No obvious mistakes in the code</li>
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